Sighting attachment for transit-telescopes.



G. N. SABGMULLEB.. BIGHTING ATTACHMENT FOR. TRANSIT TBLBSGOPEB.

LPPLIUATIOI FILED SEPT. 10, 1908.

Patented 1118.129, 1909.

GEORGE N. SAEGMULLER, OF ROCHESTER, NEW YORK.

. 'SIGHTING ATTAGHIMIENT FOR TRANSIT-TELESCOES.

iro. 914,754,

Specification of Letters Patent.

Patented March e. 1909.

Appleman mm1 september 10.1908. sriai No. 452,361.

To. all fwhom it` may concern:

Beit known that. I, Geenen N. SAEGMUL- LER, citizen of the United States, residing at Rochester,county of Monroe, State of New `York, Y havenvented certain nenT and useful Improvements in Sighting `Attachments for TransitTelescopes', of which the following` is a'specification, referencebeing had therein to theaccompanying'drawing.

This invention relates to a sighting attaehmentfor'a transit telesco e, and particularly to a reflector adapted to e applied intermediete 'of `the objective and eyepiece lenses-of f the'telescopefsofthat when desired a reecting -member Vmay be inserted in the optical lineof said lenses.

' The invention has for an object to provide a' reflecting attachment adapted for application `to -transit or other telescopes and comrising'a movable member carrying a reflect ingdevice which may be shifted into or out of the optical line of the telescope, and such 'attachmentis adapted forapplication in various-relations atan angle to the longitudinal airis of the telescope.

Other and further objects and advantages of the invention Will be hereinafter fully set forth andthe novel Ifeatures thereof defined by the appended claims.

Iii-the drawing'z-Figure 1 is a plan show ingA theY invention applied to a telescope; Fig. 2 isa horizontal-'section through the axis thereof; Fig. 3 is a detail perspective of the axial mounting for the telescope and attachment. 4

Like numerals referto like parte in several views ofthe drawing.

The numeral 10 designates a telesco c which may be of any desired character or c imensions and is provided at one end with the objective lens 11 anti at the opposite end the usual'eypiece 12. his telescope is provided at opposite sides with the openings 13 disposed adjacent the axis thereof, and for the purpose of obtainin a pivotal mounting the telescope is-i'nsertef through an aperture 14 provided in. 'the' tubular axis or casing 15,

he opposite ends 16 of this casing are pivotthe ` ally mounted in any desired form of supporting'stan'dard 17'.i The reflecting attac irnnet 18 `is inserted in one end of this tubular casing-and its objective may be :rotatively adjusted therein to the desired position. This attachment is here shown as a tube having ali' abutting flange 19 to limit` its inward movementand provided at its outer and with a rotatable .casingl20 carryiifg a reflecting prism 21 vehicliis disposed in alineinent with the objective lens 22 mounted in the casing` 20. Within the tube ofthe attachment a telescoping member 23 is disposed and carries at its inner end a movable reflecting member for instance a prism. 24 suitably mounted thereon and cooperating in its op tical action with the reflecting member, for instance a prism 21 at the outer end of the attachment: This telescoping member may be adjusted so as to. bring its reilectin device 24 into or out of the optical line of t e telescope by any desired means, one form being`- here shown, and comprising a rack 25 mounted on the tube and coperatingwith the pinionv 26 carried by the shaft 27 mounted on the attachment and provided with an operating wheel or handle 28.

In order that the reflecting' attachment may be applied to either side oi' the telescope so as to extend beyond the basevupon which it is mounted cach side of the pivot is formed' tubular and communicates with a side opening in the telescope. Nhen applied7 as shown in Fig. 2, the side opposite to the attachinent is properly closed by a cap 29to revent entrancey of light therein. The casf lng is also provided upon its top With a sleeve 30 of similar diameter to the tubular ivotal` Casin and adapted to receive the re ect-ingattac iment therein When the attachment-is to be used for top sighting. This sleeve is normally. closed by a Vcap when the attachment is not applied thereto. Another cap is used to close the opening at the telescope pivot from Which the attachment is removed. From the foregoing descri tion it'Will bc seen that this reflecting attac ment is ada ted for application to an3V character lof te escope, and particularly to a minin' transit, as in such use the attachment rep aces the ordinary side telescope and permits vertical 4sighting for mine or slope work. By means of the adjustment of the reflecting member of the attachment the telescope may be usedfor ordinary Work when the reflecting niembe; is removed from the optical line thereof, and when inserted in such line the image is reflected from the objective of the attach# ment and its reflecting member to the eyepiece of the telescope. This provides a siniplc attachment for application to an ordi'- iiary telescope to adapt the same for different classes of Work.

The reiecting attachment may be applied l at either side of the telescope, and as herein shown the objective of the attachment may be disposed in the same lane as that of the telescope so. that both o jectives will si ht either 1n a vertical, or horizontal or ot e1' lane. The mountin of the attachment, owever, permits its i'ective to be adjusted or turned upon its own axis so that its reiecting member may coperate with the telescope even though the objective of the latter is in a diierent plane, for instance, the objective of the attachment may be in a vertical lane and the telescope in a horizontal lane. t is also obvious that in top sighting t is attachment may be applied to a sleeve of the casing and in that re ation co crates with the eyepiece of the telescope as ereinbefore described.

While the reiiectin tachment have been members of the atescribed as prisms it lwill be understood that mirrors or other optical equivalents may be used in place thereof. i

Having described m invention and set forth its merits, what claim and desire to secure by Letters Patent is 1. The combination with a telescope having objective and eyepiece lenses of a reiiecting attachment connectedto said telescope' intermediate of said lenses, and a relectin member mounted upon said attachment an movable into andout of the optical field of said telescope.

2. The combination with a pivotally mounted telescope having objective and e epiece lenses, of a re'lectm attachment disposed at the pivot of sait? reflecting member mounted upon said attachment and movable into and Vout of the field of the telescope.

l3. The combination with a pivotally mounted telescope having objective and eyepiece lenses, of a reilectlng attachment isposed at the pivot of said telescope, a reflectmg member mounted upon said attachment for movement into and out of the field of the telescope, an objective lens disposed in said the end of said tube adjacent saida rture and an objective disposed at the en of tube removed from said a rture.

5. The combination wit a telescope havtelescope, and a.y

' member for said attachment provided with a reflecting device adapted to be inserted in the optical field of the telescope, and a reflecting member at the outer end of said attachmentbeyond the axial bearing of the telescope and in alinement with the reflecting device carried by the movable member of the attachment.

6. The combination with a vtelescope having) an aperture in the side wall thereof, of a tu ular axis for said telescope embracing said telescope, said aperture be' in alinement with said tubular axis, a rllecting attachment mounted in said axis, a movable member for said attachment rovided with a reflectdevice adapted to e inserted in the o tic 'field ofthe telescope, a reflecting mem r at the outer end of said attachment beyond the axial bearing of the telescope and in alinement with the' reflect' device carried by the movable member o the attachment, a shaft provided with a pinion mounted in said attachment, and a cofperating rack upon the movable member o -the attachment ca the refiecting device.

7. The combin 'tion with a telesco e having objective and eyepiece-lenses, o an attachment mounted on said telescope intermediate of said lenses, and reflecting members carried b said attachment one thereof being dispose to intercept the optical axis of the telescope and change the ocular field thereof. v

8. The combination with a telesco e having objective and eyepiece lenses,- o an attachment mounted on saidtelescope intermediate of said lenses, a reflect' member carried by said attachment and disposed to intercept the optical axis of the telescope and change the ocular iield thereof and an ob- 'ective lens mounted upon said attachment or rotative adjustment thereon.

9. The combinationwith a telesco chaving objective and eyepiece lenses an an aperture therein intermediate of said lenses, of a pivoted tubular casing in-which said` telescope is mounted, and a reflecting member mounted in said casing in alinement with the a erture therein and. osed to intercept t e optical axis of the te escope snd change the ocular field thereof.

1 0. The combination with'a telescope having o jective and eyepiece lenses and an aperture therein intermediate of said lenses, of a'pivoted. tubular casing in which Asaid teleseop'e. isr mounted, a reflecting member change the ocular field thereof, and a closure inserted in the opposite end of said easing lfrom the reflecting member.

11. The combination with a teleseo e having objective and eyepiece lenses-an en a' erture in its casing lntermediete thereof, o a

pivoted tubular casing in which said teleeither said sleeve or upon the pivote] ends of said tubular Qesing.

12. The combination with a pivoted 4telescope hevingobjeetive and e epieee lenses,

of a reflecting attachment dlsposed et the exis of seid telescope, en objective member cerriedby said attachment beyond seid axis a. reflecting member mounted upon the atteehment, end means for effectmg an edjustment of said refleotin member to ehenge the ocular field of seid teescope.

In testimony whereof I aix my signature in presence of two Witnesses.

GEORGE N. SAEGMULLER.

Witnesses:

M. W. WINES, ALFRED T. GAGE. 

